Add various UMA histograms for measuring GCM crypto performance

components/gcm_driver/gcm_stats_recorder_android_unittest.cc

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "components/gcm_driver/gcm_stats_recorder_android.h"
 
 #include <stddef.h>
 
 #include "components/gcm_driver/crypto/gcm_encryption_provider.h"
 #include "testing/gtest/include/gtest/gtest.h"
@@ skipping 39 matching lines @@
   recorder.RecordUnregistrationSent(kTestAppId);
   EXPECT_EQ(3u, activity_recorded_calls());
 
   recorder.RecordUnregistrationResponse(kTestAppId, true /* success */);
   EXPECT_EQ(4u, activity_recorded_calls());
 
   recorder.RecordDataMessageReceived(kTestAppId, 42 /* message_byte_size */);
   EXPECT_EQ(5u, activity_recorded_calls());
 
   recorder.RecordDecryptionFailure(
-      kTestAppId, GCMEncryptionProvider::DECRYPTION_FAILURE_INVALID_PAYLOAD);
+      kTestAppId, GCMEncryptionProvider::DECRYPTION_RESULT_INVALID_PAYLOAD);
   EXPECT_EQ(6u, activity_recorded_calls());
 
   RecordedActivities activities;
   recorder.CollectActivities(&activities);
 
   EXPECT_EQ(4u, activities.registration_activities.size());
   EXPECT_EQ(1u, activities.receiving_activities.size());
   EXPECT_EQ(1u, activities.decryption_failure_activities.size());
 
   recorder.CollectActivities(&activities);
@@ skipping 34 matching lines @@
 
   RecordedActivities activities;
   recorder.CollectActivities(&activities);
 
   EXPECT_EQ(0u, activities.registration_activities.size());
 }
 
 }  // namespace
 
 }  // namespace gcm